package org.fanpeng.demo.design;

import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;

/**
 * className: Singleton_00
 * Description:
 * date: 2021/8/4 11:13
 *
 * @author fanpeng
 * @version 1.0
 */
public class Singleton_00 {
    // 静态类的使用
    public static Map<String, String> cache = new ConcurrentHashMap<String,String>();

}
